El acto involuntario de su cuerpo reveló su auténtico estado emocional, a pesar de sus esfuerzos por disimularlo.
The involuntary action of his body revealed his true emotional state, despite his efforts to conceal it.
Context: psychology Los reflejos involuntarios, como parpadeo o el retiro de la mano ante el calor, son mecanismos de defensa fascinantes del cuerpo humano.
The involuntary reflexes, such as blinking or withdrawing the hand from heat, are fascinating defense mechanisms of the human body.
Context: biology La naturaleza involuntaria de ciertas respuestas humanas plantea interrogantes sobre el libre albedrío y la autodeterminación.
The involuntary nature of certain human responses raises questions about free will and self-determination.
Context: philosophy